264321740 has 12 divisors (see below), whose sum is σ = 555075696. Its totient is φ = 105728688.

The previous prime is 264321691. The next prime is 264321769. The reversal of 264321740 is 47123462.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6608024 + ... + 6608063.

It is an arithmetic number, because the mean of its divisors is an integer number (46256308).

Almost surely, 2^264321740 is an apocalyptic number.

264321740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264321740 is an abundant number, since it is smaller than the sum of its proper divisors (290753956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264321740 is a wasteful number, since it uses less digits than its factorization.

264321740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13216096 (or 13216094 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 264321740 is about 16257.9746586098. The cubic root of 264321740 is about 641.7673642682.

The spelling of 264321740 in words is "two hundred sixty-four million, three hundred twenty-one thousand, seven hundred forty".